Planet Hulk should take place in a purely Hulk movie, and it should come about because of a villain, like the Leader, sending the Hulk into space. We don't need to **** all over the other heroes in the MCU to make a Planet Hulk movie work.

But yeah, while I'd like to see Planet Hulk, I can live without World War Hulk (And by "live" I mean "I don't ever want to see World War Hulk").